Hi all
A colleague of mine has been having problems with his Polo.
It's a 1.4 petrol, 2004 or 2005 reg (can't remember now).
Symptoms:
Engine has cut out on a number of occasions, at least once in a pretty dangerous situation (outside lane of motorway!).
When this happens, the rev counter needle drops to nothing and the oil light flashes.
The car has recently been serviced, and the dealer was asked to look for faults, but said there were none. However I hooked up vag-com today and got the faults below.
Yesterday my colleague had the throttle body apart to give it a good clean - and initially the car wouldn't start after reassembly. However, after disconnecting the battery and reconnecting, it did start. After a few hiccups all seemed well, until the problem happened again this morning.
I think the misfire faults may be due to the initial startup after the throttle body had been off/cleaned.
Anyway, here are the faults from the engine module:
Also found this in the Cent. Eletric module, not sure if it's related:
We're assuming the engine speed sensor fault is the main culprit ?
Are these known to fail - and if so, any ideas how much they are to buy & how easy to replace ?
When I was doing my scan, we started it up and it sounded like it was running just fine.
Cheers
Lee
A colleague of mine has been having problems with his Polo.
It's a 1.4 petrol, 2004 or 2005 reg (can't remember now).
Symptoms:
Engine has cut out on a number of occasions, at least once in a pretty dangerous situation (outside lane of motorway!).
When this happens, the rev counter needle drops to nothing and the oil light flashes.
The car has recently been serviced, and the dealer was asked to look for faults, but said there were none. However I hooked up vag-com today and got the faults below.
Yesterday my colleague had the throttle body apart to give it a good clean - and initially the car wouldn't start after reassembly. However, after disconnecting the battery and reconnecting, it did start. After a few hiccups all seemed well, until the problem happened again this morning.
I think the misfire faults may be due to the initial startup after the throttle body had been off/cleaned.
Anyway, here are the faults from the engine module:
Code:
Friday,11,April,2008,13:04:35:03275
VAG-COM Version: Release 704.1
Address 01: Engine
Control Module Part Number: 036 906 034 HL
Component and/or Version: MARELLI 4MV 5511
Software Coding: 00071
Work Shop Code: WSC 00000
Additional Info: WVWZZZ9NZ4Y218117 VWZ7Z0D9092076
5 Faults Found:
16684 - Random/Multiple Cylinder Misfire Detected
P0300 - 35-10 - - - Intermittent
16685 - Cylinder 1: Misfire Detected
P0301 - 35-10 - - - Intermittent
16687 - Cylinder 3: Misfire Detected
P0303 - 35-10 - - - Intermittent
16688 - Cylinder 4: Misfire Detected
P0304 - 35-10 - - - Intermittent
16706 - Engine Speed Sensor (G28): No Signal
P0322 - 35-10 - - - Intermittent
Readiness: 0000 0000
Also found this in the Cent. Eletric module, not sure if it's related:
Code:
Friday,11,April,2008,13:10:34:03275
VAG-COM Version: Release 704.1
Address 09: Cent. Elect.
Control Module Part Number: 6Q1 937 049 D
Component and/or Version: 0000 BN-SG. 1S34
Software Coding: 25774
Work Shop Code: WSC 00788
1 Fault Found:
01054 - Power Supply Relay; Terminal 30 (J317)
28-00 - Short to Plus
We're assuming the engine speed sensor fault is the main culprit ?
Are these known to fail - and if so, any ideas how much they are to buy & how easy to replace ?
When I was doing my scan, we started it up and it sounded like it was running just fine.
Cheers
Lee